package com.domo.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import com.netflix.ribbon.proxy.annotation.Hystrix;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String paymentInfo_OK(Integer id){
        return "线程池：" + Thread.currentThread().getName() + " paymentInfo_OK,id: " + id + "\t" + "哈哈~";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value="3000")
    })
    public String paymentInfo_TimeOut(Integer id){
        //int age = 10/0;
        int timeNumber = 5;
        try{
            TimeUnit.SECONDS.sleep(timeNumber);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return "线程池：" + Thread.currentThread().getName() + " paymentInfo_TimeOut,id: " + id + "\t" + " 耗时" + timeNumber +"秒钟" ;
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池：" + Thread.currentThread().getName() + " 8001系统繁忙，请稍后再试,id: " + id + "\t" + " /(ㄒoㄒ)/~~";
    }

    //====服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60")// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Integer id){
        if(id < 0){
            throw new RuntimeException("******id 不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName() + "\t" +"调用成功，流水号： " + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(Integer id){
        return "id 不能为负数，请稍后再试，id: " + id;
    }
}
